
Jasmine
Administrator
Jan 19, 2001, 2:45 PM
Post #1 of 1
(3112 views)
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How do I expand function calls in a string?
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Can't Post
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(From the Perl FAQ) How do I expand function calls in a string? This is documented in the perlref manpage. In general, this is fraught with quoting and readability problems, but it is possible. To interpolate a subroutine call (in list context) into a string: print "My sub returned @{[mysub(1,2,3)]} that time.\n"; If you prefer scalar context, similar chicanery is also useful for arbitrary expressions: print "That yields ${\($n + 5)} widgets\n"; Version 5.004 of Perl had a bug that gave list context to the expression in ${...}, but this is fixed in version 5.005. See also ``How can I expand variables in text strings?'' .
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